Question

我的Case When声明工作正常：

sum(CASE WHEN datepart(dw,applydtm) = '1'
         then (cast(durationsecsqty as float)/3600)
         else 0
     End
   ) as Sunday

但是当我到达WHEN时，我需要添加另一个(cast(durationsecsqty as float)/3600)。此时，如果返回结果为0，我想从另一列moneyamt中提取值。

我正在尝试将此声明与我的第一个声明结合起来：

Case (CAST(durationsecsqty as float)/3600)
     when 0
     then moneyamt
     else (CAST(durationsecsqty as float)/3600)
 end as Sunday

Answer 1

听起来你需要这个：

sum(
    CASE 
        WHEN datepart(dw,applydtm) = '1' 
        then 
            CASE
                WHEN Case (CAST(durationsecsqty as float)/3600) = 0
                THEN moneyamt
                ELSE (CAST(durationsecsqty as float)/3600)
            END (cast(durationsecsqty as float)/3600) 
        else 0 
   End) as Sunday

使用Multiple case When语句

1 个答案: